Working with foam – whether crafting intricate cosplay armor, building architectural models, or creating custom packaging – often involves shaping it using heat. A common and frustrating problem during this process is uneven melting. This can manifest as warping, bubbling, scorching in some areas while others remain rigid, or an inconsistent, lumpy texture. Fortunately, preventing this issue is largely about understanding the causes and implementing careful control. Here's how to achieve smooth, even result